I had a hard time learning math last year.
— ________ your friend? —The boy in front of the old man.
Yingying often _____ hamburgers, French fries and Coke and her mother often cooks _______ Chinese food for them.
When he was free, he went down to the small river behind the factory and tried ____some fish.
Thank you for ______my grandpa when I was away.
— Excuse me, where can I take a bus to the supermarket? — Sorry, there are _____ buses here.